This is a proposal for an Accordance module: Enchiridion Symbolorum: A Compendium of Creeds, Definitions, and Declarations of the Catholic Church.The newest edition will be released later this month. It would be a great addition (English and Latin please, though English only to start with would be fine).

Here are two links for the print version: http://www.amazon.com/Enchiridion-Symbolorum-Compendium-Definitions-Declarations/dp/0898707463/ref=pd_rhf_ee_s_cp_1